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A Trial to Evaluate the Safety and Efficacy of DBI-001 Gel, DBI-002 Gel, and Aqueous Gel in Subjects With Tinea Pedis

Primary Purpose

Tinea Pedis

Status
Active
Phase
Phase 2
Locations
United States
Study Type
Interventional
Intervention
DBI-001 Gel
DBI-002 Gel
Aqueous Gel
Sponsored by
DermBiont, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Tinea Pedis

Eligibility Criteria

18 Years - 65 Years (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  1. Ability to understand, agree to, and sign the study Informed Consent
  2. A signed Health Information Portability and Accountability Act (HIPAA) authorization form which permits the use and disclosure of the subject's individually identifiable health information.
  3. Male or Female Subjects of any race 18-65 years of age.
  4. Subjects with a clinical diagnosis of interdigital T. pedis.
  5. Investigator confirmed diagnosis by a positive T. rubrum potassium hydroxide (KOH) wet mount at Screening at the investigative site.
  6. A quantifiable level of T. rubrum based on Sponsor laboratory qPCR from the sample obtained at the Screening visit.
  7. The sum of the clinical signs and symptoms scores of at least one web space (Target web space) is at least 4 using the Grading of Signs and Symptoms of T. pedis including a minimum score of 2 for erythema AND a minimum score of 2 for either scaling/fissures or pruritus/burning (on a scale of 0-3, where 2 indicates moderate severity).
  8. Target web space(s) should have an adequate amount of leading-edge scale to provide enough scale sampling for KOH.

Exclusion Criteria:

  1. Women who are pregnant, planning a pregnancy, breastfeeding or have a positive pregnancy test at screening.
  2. Any dermatological conditions that could interfere with clinical evaluations
  3. The clinical diagnosis of moccasin T. pedis.
  4. Subjects with gram negative interdigital tinea pedis based on a clinical diagnosis: Gram-negative athlete's foot - the interspace is foul smelling, whitish, painful, strongly macerated, and hyperkeratotic with erosions, exudation, and intense inflammation and often disabling.
  5. Any underlying disease(s) or other dermatological condition that requires the use of interfering topical or systemic therapy.
  6. Subjects with concurrent use of any of the following topical preparations who have not completed the specified washout period(s) for the following topical medications applied to the foot at the time of the Screening visit:

    1. Washout of 1 week prior to the screening visit for topical astringents and abrasives (e.g., Burrow's solution), Vicks VapoRub, tea tree oil)
    2. Washout of 2 weeks prior to the screening visit for topical antibiotics and antifungal on the feet (e.g., Neomycin, Miconazole, Clotrimazole, Terbinafine)
    3. Washout of 4 weeks prior to the screening visit for the topical Anti-inflammatories, corticosteroids, topical immunomodulators on the feet (e.g., Pimecrolimus, Tacrolimus)
  7. Subjects with concurrent use of any of the following systemic medications who have not completed the specified washout period(s) for the following systemic medications at the time of the Screening visit:

    1. Washout of 4 weeks prior to the screening visit for the systemic corticosteroids (including intramuscular injections) (e.g., Triamcinolone acetonide)
    2. Washout of 4 weeks prior to the screening visit for the systemic antibiotics (e.g., Tetracycline, Cephalosporins, etc.) and/or Antifungal agents (e.g., Fluconazole, Itraconazole, Terbinafine, etc.)
    3. Washout of 4 weeks prior to the screening visit for the systemic immunomodulators (e.g., Cyclophosphamide, Azathioprine, Biologicals-Monoclonal Antibodies)
  8. Treatment of any type of cancer within the last 6 months except for superficial skin cancers such as basal cell carcinoma and squamous cell carcinoma.
  9. History of any significant internal disease which contraindicates use of a live microbiome (e.g., leukemia, liver failure, cardiovascular disease).
  10. Subjects who are known to be allergic to any of the Test article(s) or any components in the test article(s) or history of hypersensitivity or allergic reactions to any of the study preparations as described in the Investigator's Brochure.
  11. AIDS or AIDS related complex by medical history.
  12. History of current street drug or alcohol abuse, or street drug or alcohol abuse within the past year.
  13. Known or suspected immune suppressive medications or diseases.
  14. Subjects with poorly controlled diabetes mellitus Type I or II requiring medical intervention/treatment.
  15. Peripheral vascular disease based on medical history.
  16. Any subject not able to meet the study attendance requirements.
  17. Subjects who have participated in any other trial of an investigational drug or device within 30 days prior to enrollment or participation in a research study concurrent with this study.
  18. Use of any orthopedic appliance (e.g., cast, soft cast, splint) on either foot or ankle, or surgery of either foot or ankle within 90 days of the Screening visit.

Sites / Locations

  • Oregon Dermatology and Research
  • Premier Clinical Research

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Active Comparator

Active Comparator

Placebo Comparator

Arm Label

DBI-001 Gel

DBI-002 Gel

Aqueous Gel

Arm Description

Topical application of DBI-001 Gel on foot/feet affected with tinea pedis

Topical application of DBI-002 Gel on foot/feet affected with tinea pedis

Topical application of Aqueous Gel on foot/feet affected with tinea pedis

Outcomes

Primary Outcome Measures

Change in abundance of T. rubrum based on Quantitative Polymerase Chain Reaction (qPCR)
Change in abundance of T. rubrum at baseline, day 7 and day 14

Secondary Outcome Measures

Number of participants with treatment-related adverse events
Safety
Changes in signs and symptoms of T. Pedis
Change from baseline in individual signs and symptoms of Tinea Pedis at days 7 and 14 of sites treated with DBI-001 Gel, DBI-002 Gel, or Aqueous Gel. The minimum value is 0 and the maximum value is 3 the subject's self reported observation on local tolerability.
Changes in the signs and symptoms and Investigators Static Global Assessment (ISGA) of Tinea Pedis
Changes from Baseline in signs and symptoms and ISGA at Days 7 and 14
Change in abundance of T. rubrum based on qPCR and WGS
Antimicrobial efficacy
Molecular diagnostic qPCR and WGS comparison of DBI-001 Gel, DBI-002 Gel and Aqueous Gel
Antimicrobial efficacy and microbiome community analysis
Bacterial culture comparison of DBI-001 Gel, DBI-002 Gel and Aqueous Gel
Antimicrobial efficacy and microbiome community analysis
Increase or decrease of colony forming units after DBI-001 Gel, DBI-002 Gel application
Antimicrobial efficacy
Correlation between levels of DBI-001 Gel, DBI-002 Gel and abundance of T. rubrum based on qPCR
Antimicrobial efficacy
Correlation between qPCR quantification and KOH for presence of T. rubrum at screening
Compare sensitivity and specificity of qPCR analysis and KOH for presence of T. rubrum at Screening

Full Information

First Posted
July 26, 2022
Last Updated
February 13, 2023
Sponsor
DermBiont, Inc.
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1. Study Identification

Unique Protocol Identification Number
NCT05493488
Brief Title
A Trial to Evaluate the Safety and Efficacy of DBI-001 Gel, DBI-002 Gel, and Aqueous Gel in Subjects With Tinea Pedis
Official Title
An Observer-Blinded, Randomized, Aqueous Gel Controlled Trial of the Safety and Efficacy of DBI-001 Gel, DBI-002 Gel, and Aqueous Gel in Subjects With Interdigital Tinea Pedis
Study Type
Interventional

2. Study Status

Record Verification Date
September 2022
Overall Recruitment Status
Active, not recruiting
Study Start Date
September 8, 2022 (Actual)
Primary Completion Date
December 31, 2023 (Anticipated)
Study Completion Date
December 31, 2023 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
DermBiont, Inc.

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No

5. Study Description

Brief Summary
This is a randomized, observer blinded, Aqueous Gel-controlled trial examining the effect of daily application for approximately 6-8 days of DBI-001 Gel, DBI-002 Gel, and Aqueous Gel on the subjects with interdigital tinea pedis based on Whole Genome Sequencing (WGS) and Quantitative Polymerase Chain Reaction (qPCR), and comparison between Quantitative Polymerase Chain Reaction (qPCR) and Potassium Hydroxide (KOH) for the presence of Trichophyton rubrum (T.rubrum) as well as signs and symptoms and local tolerability and toxicity on treated sites in subjects.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Tinea Pedis

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
24 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
DBI-001 Gel
Arm Type
Active Comparator
Arm Description
Topical application of DBI-001 Gel on foot/feet affected with tinea pedis
Arm Title
DBI-002 Gel
Arm Type
Active Comparator
Arm Description
Topical application of DBI-002 Gel on foot/feet affected with tinea pedis
Arm Title
Aqueous Gel
Arm Type
Placebo Comparator
Arm Description
Topical application of Aqueous Gel on foot/feet affected with tinea pedis
Intervention Type
Biological
Intervention Name(s)
DBI-001 Gel
Intervention Description
Topical application of DBI-001 gel on foot/feet affected with tinea pedis
Intervention Type
Biological
Intervention Name(s)
DBI-002 Gel
Intervention Description
Topical application of DBI-002 gel on foot/feet affected with tinea pedis
Intervention Type
Biological
Intervention Name(s)
Aqueous Gel
Intervention Description
Topical application of Aqueous gel on foot/feet affected with tinea pedis
Primary Outcome Measure Information:
Title
Change in abundance of T. rubrum based on Quantitative Polymerase Chain Reaction (qPCR)
Description
Change in abundance of T. rubrum at baseline, day 7 and day 14
Time Frame
14 days of participation
Secondary Outcome Measure Information:
Title
Number of participants with treatment-related adverse events
Description
Safety
Time Frame
14 days of participation
Title
Changes in signs and symptoms of T. Pedis
Description
Change from baseline in individual signs and symptoms of Tinea Pedis at days 7 and 14 of sites treated with DBI-001 Gel, DBI-002 Gel, or Aqueous Gel. The minimum value is 0 and the maximum value is 3 the subject's self reported observation on local tolerability.
Time Frame
14 days of participation
Title
Changes in the signs and symptoms and Investigators Static Global Assessment (ISGA) of Tinea Pedis
Description
Changes from Baseline in signs and symptoms and ISGA at Days 7 and 14
Time Frame
14 days of participation
Title
Change in abundance of T. rubrum based on qPCR and WGS
Description
Antimicrobial efficacy
Time Frame
14 days of participation
Title
Molecular diagnostic qPCR and WGS comparison of DBI-001 Gel, DBI-002 Gel and Aqueous Gel
Description
Antimicrobial efficacy and microbiome community analysis
Time Frame
14 days of participation
Title
Bacterial culture comparison of DBI-001 Gel, DBI-002 Gel and Aqueous Gel
Description
Antimicrobial efficacy and microbiome community analysis
Time Frame
14 days of participation
Title
Increase or decrease of colony forming units after DBI-001 Gel, DBI-002 Gel application
Description
Antimicrobial efficacy
Time Frame
14 days of participation
Title
Correlation between levels of DBI-001 Gel, DBI-002 Gel and abundance of T. rubrum based on qPCR
Description
Antimicrobial efficacy
Time Frame
14 days of participation
Title
Correlation between qPCR quantification and KOH for presence of T. rubrum at screening
Description
Compare sensitivity and specificity of qPCR analysis and KOH for presence of T. rubrum at Screening
Time Frame
28 days from screening

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
65 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Ability to understand, agree to, and sign the study Informed Consent A signed Health Information Portability and Accountability Act (HIPAA) authorization form which permits the use and disclosure of the subject's individually identifiable health information. Male or Female Subjects of any race 18-65 years of age. Subjects with a clinical diagnosis of interdigital T. pedis. Investigator confirmed diagnosis by a positive T. rubrum potassium hydroxide (KOH) wet mount at Screening at the investigative site. A quantifiable level of T. rubrum based on Sponsor laboratory qPCR from the sample obtained at the Screening visit. The sum of the clinical signs and symptoms scores of at least one web space (Target web space) is at least 4 using the Grading of Signs and Symptoms of T. pedis including a minimum score of 2 for erythema AND a minimum score of 2 for either scaling/fissures or pruritus/burning (on a scale of 0-3, where 2 indicates moderate severity). Target web space(s) should have an adequate amount of leading-edge scale to provide enough scale sampling for KOH. Exclusion Criteria: Women who are pregnant, planning a pregnancy, breastfeeding or have a positive pregnancy test at screening. Any dermatological conditions that could interfere with clinical evaluations The clinical diagnosis of moccasin T. pedis. Subjects with gram negative interdigital tinea pedis based on a clinical diagnosis: Gram-negative athlete's foot - the interspace is foul smelling, whitish, painful, strongly macerated, and hyperkeratotic with erosions, exudation, and intense inflammation and often disabling. Any underlying disease(s) or other dermatological condition that requires the use of interfering topical or systemic therapy. Subjects with concurrent use of any of the following topical preparations who have not completed the specified washout period(s) for the following topical medications applied to the foot at the time of the Screening visit: Washout of 1 week prior to the screening visit for topical astringents and abrasives (e.g., Burrow's solution), Vicks VapoRub, tea tree oil) Washout of 2 weeks prior to the screening visit for topical antibiotics and antifungal on the feet (e.g., Neomycin, Miconazole, Clotrimazole, Terbinafine) Washout of 4 weeks prior to the screening visit for the topical Anti-inflammatories, corticosteroids, topical immunomodulators on the feet (e.g., Pimecrolimus, Tacrolimus) Subjects with concurrent use of any of the following systemic medications who have not completed the specified washout period(s) for the following systemic medications at the time of the Screening visit: Washout of 4 weeks prior to the screening visit for the systemic corticosteroids (including intramuscular injections) (e.g., Triamcinolone acetonide) Washout of 4 weeks prior to the screening visit for the systemic antibiotics (e.g., Tetracycline, Cephalosporins, etc.) and/or Antifungal agents (e.g., Fluconazole, Itraconazole, Terbinafine, etc.) Washout of 4 weeks prior to the screening visit for the systemic immunomodulators (e.g., Cyclophosphamide, Azathioprine, Biologicals-Monoclonal Antibodies) Treatment of any type of cancer within the last 6 months except for superficial skin cancers such as basal cell carcinoma and squamous cell carcinoma. History of any significant internal disease which contraindicates use of a live microbiome (e.g., leukemia, liver failure, cardiovascular disease). Subjects who are known to be allergic to any of the Test article(s) or any components in the test article(s) or history of hypersensitivity or allergic reactions to any of the study preparations as described in the Investigator's Brochure. AIDS or AIDS related complex by medical history. History of current street drug or alcohol abuse, or street drug or alcohol abuse within the past year. Known or suspected immune suppressive medications or diseases. Subjects with poorly controlled diabetes mellitus Type I or II requiring medical intervention/treatment. Peripheral vascular disease based on medical history. Any subject not able to meet the study attendance requirements. Subjects who have participated in any other trial of an investigational drug or device within 30 days prior to enrollment or participation in a research study concurrent with this study. Use of any orthopedic appliance (e.g., cast, soft cast, splint) on either foot or ankle, or surgery of either foot or ankle within 90 days of the Screening visit.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Emma Taylor, Ph.D
Organizational Affiliation
DermBiont, Inc.
Official's Role
Study Director
Facility Information:
Facility Name
Oregon Dermatology and Research
City
Portland
State/Province
Oregon
ZIP/Postal Code
97210
Country
United States
Facility Name
Premier Clinical Research
City
Spokane
State/Province
Washington
ZIP/Postal Code
99202
Country
United States

12. IPD Sharing Statement

Learn more about this trial

A Trial to Evaluate the Safety and Efficacy of DBI-001 Gel, DBI-002 Gel, and Aqueous Gel in Subjects With Tinea Pedis

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